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Proceedings Paper

Acoustic sensor performance for vehicle-mounted arrays
Author(s): Russell Braunling; Michael A. Gallo
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Paper Abstract

Commercially available digital signal processors (DSPs) can be used to host state-of-the-art air acoustic adaptive beamforming algorithms in low power, low cost, real-time sensor systems. These systems are suitable for use as both unattended ground sensor and in vehicle mounted microphone array applications. This paper describes a compact state-of- the-art, real-time adaptive beamforming approach and sensor hardware for vehicle mounted array operation. Recent field test results are presented for detection, tracking, and classification results with the vehicle engine idling as well as with the vehicle 'on the move.' Tracking accuracy results are also presented. The system tested used an eight- microphone array on the SARGE with two additional microphones located near the engine and the exhaust for additional adaptive noise cancellation.

Paper Details

Date Published: 12 August 1998
PDF: 9 pages
Proc. SPIE 3366, Robotic and Semi-Robotic Ground Vehicle Technology, (12 August 1998); doi: 10.1117/12.317559
Show Author Affiliations
Russell Braunling, Alliant Techsystems Inc. (United States)
Michael A. Gallo, Alliant Techsystems Inc. (United States)


Published in SPIE Proceedings Vol. 3366:
Robotic and Semi-Robotic Ground Vehicle Technology
Grant R. Gerhart; Ben A. Abbott, Editor(s)

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